83 lines
2.9 KiB
C
83 lines
2.9 KiB
C
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/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2017-2019 Damien P. George
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef MICROPY_INCLUDED_STM32_MBOOT_PACK_H
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#define MICROPY_INCLUDED_STM32_MBOOT_PACK_H
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#include <stdint.h>
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#include "py/mphal.h"
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#if MBOOT_ENABLE_PACKING
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#include "lib/libhydrogen/hydrogen.h"
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// Encrypted & signed bootloader support
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/******************************************************************************/
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// Interface
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#define MBOOT_PACK_HEADER_VERSION (1)
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// Used by libhydrogen for signing and secretbox context.
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#define MBOOT_PACK_HYDRO_CONTEXT "mbootenc"
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// Maximum size of the firmware payload.
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#define MBOOT_PACK_DFU_CHUNK_BUF_SIZE (MBOOT_PACK_CHUNKSIZE + hydro_secretbox_HEADERBYTES)
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enum mboot_pack_chunk_format {
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MBOOT_PACK_CHUNK_META = 0,
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MBOOT_PACK_CHUNK_FULL_SIG = 1,
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MBOOT_PACK_CHUNK_FW_RAW = 2,
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MBOOT_PACK_CHUNK_FW_GZIP = 3,
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};
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// Each DFU chunk transfered has this header to validate it.
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typedef struct _mboot_pack_chunk_buf_t {
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struct {
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uint8_t header_vers;
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uint8_t format; // enum mboot_pack_chunk_format
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uint8_t _pad[2];
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uint32_t address;
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uint32_t length; // number of bytes in following "data" payload, excluding "signature"
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} header;
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uint8_t data[MBOOT_PACK_DFU_CHUNK_BUF_SIZE];
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uint8_t signature[hydro_sign_BYTES];
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} mboot_pack_chunk_buf_t;
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// Signing and encryption keys, stored in mboot flash, provided externally.
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extern const uint8_t mboot_pack_sign_public_key[hydro_sign_PUBLICKEYBYTES];
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extern const uint8_t mboot_pack_secretbox_key[hydro_secretbox_KEYBYTES];
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/******************************************************************************/
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// Implementation
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void mboot_pack_init(void);
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int mboot_pack_write(uint32_t addr, const uint8_t *src8, size_t len);
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#endif // MBOOT_ENABLE_PACKING
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#endif // MICROPY_INCLUDED_STM32_MBOOT_PACK_H
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